Computerized System Essay Example for Free

Computerized System Essay7.1 Architectural Design7.1.1 Entity-Relationship drawFig. 7.1.1 Database modelOn the figure above, the table occurrence_description contains information about the items in the inventory. This is where the data for new items testament be stored and updating of information of existing items takes place. Notice that, the table critical_items has only two attribute which is term that identifies the critical item if it is low or not. The exploit table is where the governing body stores data regarding individual effect while item_trans table focuses on list of items and its total price. 7.2 System Function7.2.1 Physical Data extend DiagramFig. 7.2.1 Physical DFDThe system mainly consists of functions for sales and inventory management. A guest orders an item and the system checks the inventory by accessing the defeat item table. New items can be added by the management and the master item record is updated as such. A process computes the total price for the items ordered by victimization the input from the customer and data(prices) from the inventory master table. After the transaction, admit entrust be given to the customer and both the inventory record and sales record are updated. If the system detects any item to be at critical level, a notification leave behind be sent to the management.7.2.2 User InterfaceFig. 7.2.2.1 principal(prenominal) MenuThis is the interface where the substance abuser has access to all function of the system (Fig. 7.2.2.1). The first thing that will show up when the user runs the system is the button with a text of V. When the user clicks the V button the five buttons and upon clicking the inventory and report button their sub items will also reckon and when the user clicks one of these buttons (Point of Sale, View Inventory, Update Inventory, Add Inventory, Critical Items, View Sales Report, and View Inventory report) the visibility of all buttons will be disabled and hence the desired form of the user will issue on the gray space.The sub buttons of Inventory is where the user viewing of inventory and critical items ( if theres any ), update, and adding of inventory. The sub buttons of reports is where the user views the sales and inventory report of the system, the help button mainly focuses on how to use it or what we call user manual and about the system.Fig. 7.2.2.2 Point of SaleLastly, this form is where the transaction between the manager and the customer takes place. First thing that the user will do is choose an item code and then the quantity for the item and it will automatically compute for the price after that, he will have to click the add item button then the item will appear on the white space on the right side and then a message will prompt if he indispensableness to add another or not if he doesnt want to add another item the uwser will require to input the customers payment and clicking the fat transaction button will prompt another message if the user is sure about the transaction. And then if the user is sure, the system will prompt another message if he want to print the receipt or not.